Quick answers
- Does Gregory A. Garcia accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory A. Garcia accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gregory A. Garcia see?
- In 2024, CMS data shows 225 Original Medicare patients and 543 services for Gregory A. Garcia. This counts Original Medicare only and measures volume, not quality.
- What is Gregory A. Garcia's NPI number?
- 1811659311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gregory A. Garcia, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 225 |
|---|---|
| Services billed to Medicare | 543 |
| Different services or procedures | 50 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)128 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)60 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)29 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)27 services
- Automated urinalysis test (81003)25 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure69%
- Arthritis51%
- Diabetes28%
- Osteoporosis28%
- Chronic kidney disease25%
Practice locations
Addresses where Gregory A. Garcia is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 15855 Pomona Rincon Rd, Bldg 4Chino Hills, CA 91709 (909) 929‑2511
- 19333 Bear Valley RdApple Valley, CA 92308
- 1950 Sunny Crest Dr, Suite 2900Fullerton, CA 92835 (714) 992‑5350
- 2501 E Chapman AveOrange, CA 92869 (714) 633‑7175
- 363 S Main St, Suite 110Orange, CA 92868 (714) 855‑3602
Group practices
Medicare enrollment lists Gregory A. Garcia as a member of this group (CMS data updated October 2, 2026).
- Providence Medical Foundation1,466 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Chino Hills
Clinicians with the same Medicare primary specialty in Chino Hills, CA — not a recommendation.
Other clinicians in Providence Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811659311 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians